After that, pull and clean your carburetor, if your bike is so equipped. Gas will start to gum up after a while and that will clog the narrow passages in your carburetor, so get some carb cleaner and pull apart that carburetor. Pulling off the float bowl on the bottom of your carburetor will give you a good idea of the state of the rest of the mechanism. If this is gummy or dirty, chances are the rest of your carb is as well. Clean out your float bowl, then remove your float to inspect the jets—the small brass screws that gas passes through. If this is all new to you, the process can be a little intimidating, but this episode of MC Garage does a great job of showing you the ropes. After getting all your jets and needles clear, screw everything back together and reinstall your carb and air cleaner. If your bike is fuel injected, it will be a little more resilient in this category, but the fuel pump may still need to be pulled off and gone through if your bike has been stored for a very long time with gas in the tank.